Home / 817,136.64-1,225,756.80-396,299.52

Finding the Fourth Proportional to 817,136.64, 1,225,756.80 and 396,299.52

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Solution

The fourth proportional to 817,136.64, 1,225,756.80 and 396,299.52 is: 594,474.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,136.64 : 1,225,756.80 = 396,299.52 : x
  2. Step 2: Convert to fraction form
    817,136.64/1,225,756.80 = 396,299.52/x
  3. Step 3: Cross multiply
    817,136.64x = 1,225,756.80 × 396,299.52
  4. Step 4: Simplify right side
    817,136.64x = 485,766,831,476.74
  5. Step 5: Solve for x
    x = 485,766,831,476.74/817,136.64
  6. Step 6: Final answer
    x = 594,474.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.